Photographing optical lens assembly, image capturing unit and electronic device

ABSTRACT

A photographing optical lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The second lens element has positive refractive power. The sixth lens element has both of an object-side surface and an image-side surface being aspheric. The seventh lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the seventh lens element has at least one convex shape in an off-axis region thereof, and both of an object-side surface and the image-side surface are aspheric.

RELATED APPLICATIONS

This application claims priority to Taiwan Application 104121339, filedJul. 1, 2015, which is incorporated by reference herein in its entirety.

BACKGROUND

Technical Field

The present disclosure relates to a photographing optical lens assembly,an image capturing unit and an electronic device, more particularly to aphotographing optical lens assembly and an image capturing unitapplicable to an electronic device.

Description of Related Art

In recent years, with the popularity of electronic devices having camerafunctionalities, the demand of miniaturized optical systems has beenincreasing. The sensor of a conventional optical system is typically aCCD (Charge-Coupled Device) or a CMOS (ComplementaryMetal-Oxide-Semiconductor) sensor. As the advanced semiconductormanufacturing technologies have allowed the pixel size of sensors to bereduced and compact optical systems have gradually evolved toward thefield of higher megapixels, there is an increasing demand for compactoptical systems featuring better image quality.

A conventional optical system employed in a portable electronic productmainly adopts a lens structure with less lens elements. Due to thepopularity of mobile terminals with high-end specifications, such assmart phones, tablet personal computers, wearable apparatuses and carcameras, the requirements for high resolution and image quality ofpresent compact optical systems increase significantly. However, theconventional optical systems cannot satisfy these requirements of thecompact optical systems.

Other conventional optical systems with traditional arrangements of thelens elements are developed to provide wide field of view and sufficientincident light for improving the image quality, but are unable tosatisfy the requirement of compact size. Therefore, the conventionaloptical systems cannot simultaneously satisfy these requirements of highimage quality and compact size that are needed for the present compactoptical systems.

SUMMARY

According to one aspect of the present disclosure, a photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element, a second lens element, a third lens element,a fourth lens element, a fifth lens element, a sixth lens element and aseventh lens element. The second lens element has positive refractivepower. The sixth lens element has both of an object-side surface and animage-side surface being aspheric. The seventh lens element has animage-side surface being concave in a paraxial region thereof, whereinthe image-side surface of the seventh lens element has at least oneconvex shape in an off-axis region thereof, and both of an object-sidesurface and the image-side surface of the seventh lens element areaspheric. The photographing optical lens assembly has a total of sevenlens elements. The first lens element, the second lens element, thethird lens element, the fourth lens element, the fifth lens element, thesixth lens element and the seventh lens element are all single andnon-cemented lens elements. When a curvature radius of the image-sidesurface of the sixth lens element is R12, a curvature radius of theimage-side surface of the seventh lens element is R14, a focal length ofthe photographing optical lens assembly is f, a focal length of thefirst lens element is f1, a focal length of the second lens element isf2, an axial distance between an object-side surface of the first lenselement and an image surface is TL, a maximum image height of thephotographing optical lens assembly is ImgH, the following conditionsare satisfied:0≦R12/f;f2/|f1|<1.5;R14/f<0.75; andTL/ImgH<3.0.

According to another aspect of the present disclosure, an imagecapturing unit includes an image sensor and the aforementionedphotographing optical lens assembly, wherein the image sensor isdisposed on the image side of the photographing optical lens assembly.

According to still another aspect of the present disclosure, anelectronic device includes the aforementioned image capturing unit.

BRIEF DESCRIPTION OF THE DRAWINGS

The disclosure can be more fully understood by reading the followingdetailed description of the embodiments, with reference made to theaccompanying drawings as follows:

FIG. 1 is a schematic view of an image capturing unit according to the1st embodiment of the present disclosure;

FIG. 2 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 1stembodiment;

FIG. 3 is a schematic view of an image capturing unit according to the2nd embodiment of the present disclosure;

FIG. 4 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 2ndembodiment;

FIG. 5 is a schematic view of an image capturing unit according to the3rd embodiment of the present disclosure;

FIG. 6 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 3rdembodiment;

FIG. 7 is a schematic view of an image capturing unit according to the4th embodiment of the present disclosure;

FIG. 8 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 4thembodiment;

FIG. 9 is a schematic view of an image capturing unit according to the5th embodiment of the present disclosure;

FIG. 10 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 5thembodiment;

FIG. 11 is a schematic view of an image capturing unit according to the6th embodiment of the present disclosure;

FIG. 12 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 6thembodiment;

FIG. 13 is a schematic view of an image capturing unit according to the7th embodiment of the present disclosure;

FIG. 14 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 7thembodiment;

FIG. 15 is a schematic view of an image capturing unit according to the7th embodiment of the present disclosure;

FIG. 16 shows spherical aberration curves, astigmatic field curves and adistortion curve of the image capturing unit according to the 7thembodiment;

FIG. 17 is a schematic view of a reference point located at a center ofan image-side surface of a fourth lens element in FIG. 1;

FIG. 18 shows an electronic device according to one embodiment;

FIG. 19 shows an electronic device according to another embodiment; and

FIG. 20 shows an electronic device according to still anotherembodiment.

DETAILED DESCRIPTION

A photographing optical lens assembly includes, in order from an objectside to an image side, a first lens element, a second lens element, athird lens element, a fourth lens element, a fifth lens element, a sixthlens element and a seventh lens element. The photographing optical lensassembly has a total of seven lens elements.

According to the present disclosure, there is an air gap in a paraxialregion arranged between every two of the first lens element, the secondlens element, the third lens element, the fourth lens element, the fifthlens element, the sixth lens element and the seventh lens element thatare adjacent to each other. That is, each of the first through seventhlens elements of the photographing optical lens assembly is a single andnon-cemented lens element. Moreover, the manufacturing process of thecemented lenses is more complex than the non-cemented lenses. Inparticular, an image-side surface of one lens element and an object-sidesurface of the following lens element need to have accurate curvature toensure these two lens elements will be highly cemented. However, duringthe cementing process, those two lens elements might not be highlycemented due to displacement and it is thereby not favorable for theimage quality of the lens system. Therefore, the single and non-cementedlens element in the present disclosure is favorable for solving theproblem generated by the cemented lens elements.

The first lens element has refractive power. Therefore, it is favorablefor correcting the aberration so as to improve the image quality.

The second lens element has positive refractive power. Therefore, it isfavorable for reducing a total track length of the photographing opticallens assembly.

The third lens element can have negative refractive power. Therefore, itis favorable for correcting the aberration from the second lens elementand reducing the sensitivity of the photographing optical lens assembly.

The fourth lens element can have positive refractive power. The fourthlens element can have an image-side surface being convex in a paraxialregion thereof. In addition, a center of the image-side surface of thefourth lens element can be the point closest to an image surface on theimage-side surface of the fourth lens element. As seen in FIG. 17, whichshows a schematic view of a reference point located at a center of animage-side surface of a fourth lens element in FIG. 1. In FIG. 17, areference point P at the image-side surface of the fourth lens elementis the center of the image-side surface of the fourth lens element. Thereference point P is closer to the image surface than the otherreference points (not shown in the drawing) at the image-side surface ofthe fourth lens element. Therefore, it is favorable for effectivelycorrecting the Petzval sum so as to improve the flatness of the imagesurface and effectively correct the astigmatism. The center of theimage-side surface of the fourth lens element is an intersection of theimage-side surface of the fourth lens element and an optical axis.

The fifth lens element has refractive power. Therefore, it is favorablefor correcting the astigmatism so as to improve the image quality.

The sixth lens element can have positive refractive power. The sixthlens element can have an image-side surface being concave in a paraxialregion thereof, and the image-side surface of the sixth lens element canhave at least one convex shape in an off-axis region thereof. Therefore,a shape of the sixth lens element is more proper so that it is favorablefor correcting the aberration and distortion at the peripheral region ofthe image, thereby further improving the image quality

The seventh lens element with refractive power can have an object-sidesurface being convex in a paraxial region thereof. The seventh lenselement has an image-side surface being concave in a paraxial regionthereof, and the image-side surface of the seventh lens element has atleast one convex shape in an off-axis region thereof. Therefore, it isfavorable for the principal point of the photographing optical lensassembly being positioned away from the image side of the opticalimaging lens system so as to effectively reduce a back focal length ofthe photographing optical lens assembly, thereby maintaining a compactsize thereof.

When a curvature radius of the image-side surface of the sixth lenselement is R12, a focal length of the photographing optical lensassembly is f, the following condition is satisfied: 0≦R12/f. Therefore,it is favorable for the principal point of the photographing opticallens assembly being further positioned away from the image side of theoptical imaging lens system so as to so as to reduce the total tracklength of the photographing optical lens assembly.

When a focal length of the first lens element is f1, a focal length ofthe second lens element is f2, the following condition is satisfied:f2/|f1|<1.5. Therefore, the refractive power distribution at the imageside of the photographing optical lens assembly is sufficient so that itis favorable for providing wide field of view, low sensitivity andcompact size. Preferably, the following condition can also be satisfied:f2/|f1|<1.0.

When a curvature radius of the image-side surface of the seventh lenselement is R14, the focal length of the photographing optical lensassembly is f, the following condition is satisfied: R14/f<0.75.Therefore, the image-side surface of the seventh lens element isfavorable for effectively reducing the back focal length of thephotographing optical lens assembly so as to maintain a compact sizethereof. Preferably, the following condition can also be satisfied:R14/f<0.60. More preferably, the following condition can also besatisfied: R14/f<0.45.

When an axial distance between an object-side surface of the first lenselement and the image surface is TL, a maximum image height (half of adiagonal length of an effective photosensitive area of an image sensor)of the photographing optical lens assembly is ImgH, the followingcondition is satisfied: TL/ImgH<3.0. Therefore, it is favorable forkeeping the photographing optical lens assembly compact so as to beequipped in an electronic device.

When a central thickness of the fourth lens element is CT4, a centralthickness of the fifth lens element is CT5, the following condition canbe satisfied: 1.25<CT4/CT5<4.0. Therefore, it is favorable for reducingnumerous lens molding problems so as to increase the manufacturing yieldrate.

When a maximum refractive power among the first lens element, the secondlens element, the third lens element, the fourth lens element, the fifthlens element, the sixth lens element and the seventh lens element isPowmax, the following condition can be satisfied: |Powmax|<0.90.Therefore, it is favorable for evenly arranging the refractive powers ofthe lens elements so as to reduce the sensitivity of the lens elements,thereby increasing the manufacturing yield rate. In detail, a refractivepower of a lens element is defined as a ratio of a focal length of thephotographing optical lens assembly to a focal length of the lenselement.

When a sum of central thicknesses of the first lens element, the secondlens element, the third lens element, the fourth lens element, the fifthlens element, the sixth lens element and the seventh lens element isΣCT, an axial distance between the object-side surface of the first lenselement and the image-side surface of the seventh lens element is Td,the following condition can be satisfied: 0.70≦ΣCT/Td<0.95. Therefore,it is favorable for providing the lens elements with proper axialdistances and thicknesses so as to increase the manufacturing yield rateand keep the photographing optical lens assembly compact.

When a curvature radius of the object-side surface of the seventh lenselement is R13, the curvature radius of the image-side surface of theseventh lens element is R14, the focal length of the photographingoptical lens assembly is f, the following condition can be satisfied:(|R13|+|R14|)/f<2.0. Therefore, it is favorable for balancing thecurvature radii of the two surfaces of the seventh lens element so as tocorrect the spherical aberration. In addition, when the object-sidesurface of the seventh lens element is convex in a paraxial regionthereof, it is also favorable for providing the seventh lens elementwith proper shape so as to improve the capability in the correction ofaberration.

When a central thickness of the first lens element is CT1, a centralthickness of the second lens element is CT2, the following condition canbe satisfied: CT2/CT1<1.60. Therefore, it is favorable for providing thefirst lens element and the second lens element with proper thicknessesso as to increase the manufacturing yield.

When an axial distance between the object-side surface of the first lenselement and an image-side surface of the third lens element is Dr1r6, acentral thickness of the fourth lens element is CT4, the followingcondition can be satisfied: Dr1r6/CT4<2.50. Therefore, it is favorablefor tightly arranging the lens elements being close to the object sideof the photographing optical lens assembly so as to keep thephotographing optical lens assembly compact.

When an Abbe number of the third lens element is V3, an Abbe number ofthe fifth lens element is V5, the following condition can be satisfied:V3+V5<60. Therefore, it is favorable for correcting the chromaticaberration and the astigmatism.

When the focal length of the photographing optical lens assembly is f,the focal length of the first lens element is f1, the focal length ofthe second lens element is f2, the following condition can be satisfied:|f/f1|+|f/f2|<1.50. Therefore, it is favorable for evenly arranging therefractive powers of the first lens element and the second lens elementso as to reduce the sensitivity of the lens elements being close to theobject side of the photographing optical lens assembly.

When an Abbe number of the second lens element is V2, an Abbe number ofthe third lens element is V3, the following condition can be satisfied:1.5<V2/V3<3.5, Therefore, it is favorable for correcting the chromaticaberration and the astigmatism.

According to the present disclosure, an aperture stop can be configuredas a front stop or a middle stop. A front stop disposed between animaged object and the first lens element can produce a telecentriceffect by providing a longer distance between an exit pupil of thephotographing optical lens assembly and the image surface and therebyimproving the image-sensing efficiency of an image sensor (for example,CCD or CMOS). A middle stop disposed between the first lens element andthe image surface is favorable for enlarging the view angle of thephotographing optical lens assembly and thereby provides a wider fieldof view.

According to the present disclosure, the lens elements of thephotographing optical lens assembly can be made of glass or plasticmaterial. When the lens elements are made of glass material, therefractive power distribution of the photographing optical lens assemblymay be more flexible to design. When the lens elements are made ofplastic material, the manufacturing cost can be effectively reduced.Furthermore, surfaces of each lens element can be arranged to beaspheric, since the aspheric surface of the lens element is easy to forma shape other than spherical surface so as to have more controllablevariables for eliminating the aberration thereof, and to furtherdecrease the required number of the lens elements. Therefore, the totaltrack length of the photographing optical lens assembly can also bereduced.

According to the present disclosure, each of an object-side surface andan image-side surface has a paraxial region and an off-axis region. Theparaxial region refers to the region of the surface where light raystravel close to the optical axis, and the off-axis region refers to theregion of the surface away from the paraxial region. Particularly, whenthe lens element has a convex surface, it indicates that the surface canbe convex in the paraxial region thereof; when the lens element has aconcave surface, it indicates that the surface can be concave in theparaxial region thereof. Moreover, when a region of refractive power orfocus of a lens element is not defined, it indicates that the region ofrefractive power or focus of the lens element can be in the paraxialregion thereof.

According to the present disclosure, an image surface of thephotographing optical lens assembly, based on the corresponding imagesensor, can be flat or curved, especially a curved surface being concavefacing towards the object side of the photographing optical lensassembly.

According to the present disclosure, the photographing optical lensassembly can include at least one stop, such as an aperture stop, aglare stop or a field stop. Said glare stop or said field stop is setfor eliminating the stray light and thereby improving the image qualitythereof.

According to the present disclosure, an image capturing unit isprovided. The image capturing unit includes the photographing opticallens assembly according to the aforementioned photographing optical lensassembly of the present disclosure, and an image sensor, wherein theimage sensor is disposed on the image side of the aforementionedphotographing optical lens assembly, that is, the image sensor can bedisposed on or near an image surface of the aforementioned photographingoptical lens assembly. In some embodiments, the image capturing unit canfurther include a barrel member, a holding member or a combinationthereof.

In FIG. 18, FIG. 19, and FIG. 20, an image capturing device 10 may beinstalled in, but not limited to, an electronic device, including asmart phone (FIG. 18), a tablet personal computer (FIG. 19) or awearable device (FIG. 20). The electronic devices shown in the figuresare only exemplary for showing the image capturing device of presentdisclosure installed in an electronic device and are not limitedthereto. In some embodiments, the electronic device can further include,but not limited to, a display unit, a control unit, a storage unit, arandom access memory unit (RAM), a read only memory unit (ROM) or acombination thereof.

According to the present disclosure, the photographing optical lensassembly can be optionally applied to optical systems with a movablefocus. Furthermore, the photographing optical lens assembly is featuredwith good capability in the correction of aberration and high imagequality, and can be applied to 3D (three-dimensional) image capturingapplications, in products such as digital cameras, mobile devices,digital tablets, wearable devices, smart televisions, networksurveillance devices, motion sensing input devices, dashboard cameras,vehicle backup cameras and other electronic imaging devices. Accordingto the above description of the present disclosure, the followingspecific embodiments are provided for further explanation.

1st Embodiment

FIG. 1 is a schematic view of an image capturing unit according to the1st embodiment of the present disclosure. FIG. 2 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 1stembodiment. In FIG. 1, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 195. The photographingoptical lens assembly includes, in order from an object side to an imageside, an aperture stop 100, a first lens element 110, a second lenselement 120, a third lens element 130, a fourth lens element 140, afifth lens element 150, a sixth lens element 160, a seventh lens element170, an IR-cut filter 180 and an image surface 190, wherein thephotographing optical lens assembly has a total of seven single andnon-cemented lens elements (110-170).

The first lens element 110 with positive refractive power has anobject-side surface 111 being convex in a paraxial region thereof and animage-side surface 112 being concave in a paraxial region thereof. Thefirst lens element 110 is made of plastic material and has theobject-side surface 111 and the image-side surface 112 being bothaspheric.

The second lens element 120 with positive refractive power has anobject-side surface 121 being convex in a paraxial region thereof and animage-side surface 122 being concave in a paraxial region thereof. Thesecond lens element 120 is made of plastic material and has theobject-side surface 121 and the image-side surface 122 being bothaspheric.

The third lens element 130 with negative refractive power has anobject-side surface 131 being convex in a paraxial region thereof and animage-side surface 132 being concave in a paraxial region thereof. Thethird lens element 130 is made of plastic material and has theobject-side surface 131 and the image-side surface 132 being bothaspheric.

The fourth lens element 140 with positive refractive power has anobject-side surface 141 being convex in a paraxial region thereof and animage-side surface 142 being convex in a paraxial region thereof. Thefourth lens element 140 is made of plastic material and has theobject-side surface 141 and the image-side surface 142 being bothaspheric. A center of the image-side surface 142 of the fourth lenselement 140 is the point closest to the image surface 190 on theimage-side surface 142.

The fifth lens element 150 with negative refractive power has anobject-side surface 151 being concave in a paraxial region thereof andan image-side surface 152 being convex in a paraxial region thereof. Thefifth lens element 150 is made of plastic material and has theobject-side surface 151 and the image-side surface 152 being bothaspheric.

The sixth lens element 160 with positive refractive power has anobject-side surface 161 being convex in a paraxial region thereof and animage-side surface 162 being concave in a paraxial region thereof. Thesixth lens element 160 is made of plastic material and has theobject-side surface 161 and the image-side surface 162 being bothaspheric. The image-side surface 162 of the sixth lens element 160 hasat least one convex shape in an off-axis region thereof.

The seventh lens element 170 with negative refractive power has anobject-side surface 171 being convex in a paraxial region thereof and animage-side surface 172 being concave in a paraxial region thereof. Theseventh lens element 170 is made of plastic material and has theobject-side surface 171 and the image-side surface 172 being bothaspheric. The image-side surface 172 of the seventh lens element 170 hasat least one convex shape in an off-axis region thereof.

The IR-cut filter 180 is made of glass and located between the seventhlens element 170 and the image surface 190, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 195 is disposed on or near the image surface 190 of thephotographing optical lens assembly.

The equation of the aspheric surface profiles of the aforementioned lenselements of the 1st embodiment is expressed as follows:

${Y(X)} = {{\left( {Y^{2}/R} \right)/\left( {1 + {{sqrt}\left( {1 - {\left( {1 + k} \right) \times \left( {Y/R} \right)^{2}}} \right)}} \right)} + {\sum\limits_{i}{\left( {A\; i} \right) \times \left( Y^{i} \right)}}}$

where,

X is the relative distance between a point on the aspheric surfacespaced at a distance Y from an optical axis and the tangential plane atthe aspheric surface vertex on the optical axis;

Y is the vertical distance from the point on the aspheric surface to theoptical axis;

R is the curvature radius;

k is the conic coefficient; and

Ai is the i-th aspheric coefficient, and in the embodiments, i may be,but is not limited to, 4, 6, 8, 10, 12, 14 and 16.

In the photographing optical lens assembly of the image capturing unitaccording to the 1st embodiment, when a focal length of thephotographing optical lens assembly is f, an f-number of thephotographing optical lens assembly is Fno, and half of a maximal fieldof view of the photographing optical lens assembly is HFOV, theseparameters have the following values: f=4.28 millimeters (mm); Fno=2.25;and HFOV=39.8 degrees (deg.).

When an Abbe number of the second lens element 120 is V2, an Abbe numberof the third lens element 130 is V3, the following condition issatisfied: V2/V3=2.38.

When the Abbe number of the third lens element 130 is V3, an Abbe numberof the fifth lens element 150 is V5, the following condition issatisfied: V3+V5=47.0.

When a central thickness of the first lens element 110 is CT1, a centralthickness of the second lens element 120 is CT2, the following conditionis satisfied: CT2/CT1=0.69.

When a central thickness of the fourth lens element 140 is CT4, acentral thickness of the fifth lens element 150 is CT5, the followingcondition is satisfied: CT4/CT5=1.69.

When a sum of central thicknesses of the first lens element 110, thesecond lens element 120, the third lens element 130, the fourth lenselement 140, the fifth lens element 150, the sixth lens element 160 andthe seventh lens element 170 is ΣCT, an axial distance between theobject-side surface 111 of the first lens element 110 and the image-sidesurface 172 of the seventh lens element 170 is Td, the followingcondition is satisfied: ΣCT/Td=0.70.

When an axial distance between the object-side surface 111 of the firstlens element 110 and the image-side surface 132 of the third lenselement 130 is Dr1r6, the central thickness of the fourth lens element140 is CT4, the following condition is satisfied: Dr1r6/CT4=2.17.

When a focal length of the first lens element 110 is f1, a focal lengthof the second lens element 120 is f2, the following condition issatisfied: f2/|f1|=0.61.

When a curvature radius of the image-side surface 162 of the sixth lenselement 160 is R12, the focal length of the photographing optical lensassembly is f, the following condition is satisfied: R12/f=0.97.

When a curvature radius of the object-side surface 171 of the seventhlens element 170 is R13, a curvature radius of the image-side surface172 of the seventh lens element 170 is R14, the focal length of thephotographing optical lens assembly is f, the following condition issatisfied: (|R13|+|R14|)/f=0.99.

When the curvature radius of the image-side surface 172 of the seventhlens element 170 is R14, the focal length of the photographing opticallens assembly is f, the following condition is satisfied: R14/f=0.35.

When an axial distance between the object-side surface 111 of the firstlens element 110 and the image surface 190 is TL, a maximum image heightof the photographing optical lens assembly is ImgH, the followingcondition is satisfied: TL/ImgH=1.48.

When the focal length of the photographing optical lens assembly is f,the focal length of the first lens element 110 is f1, the focal lengthof the second lens element 120 is f2, the following condition issatisfied: |f/f1|+|f/f2|=1.12.

When a maximum refractive power among the first lens element 110, thesecond lens element 120, the third lens element 130, the fourth lenselement 140, the fifth lens element 150, the sixth lens element 160 andthe seventh lens element 170 is Powmax, the following condition issatisfied: |Powmax|=0.70.

The detailed optical data of the 1st embodiment are shown in Table 1 andthe aspheric surface data are shown in Table 2 below.

TABLE 1 1st Embodiment f = 4.28 mm, Fno = 2.25, HFOV = 39.8 deg.Curvature Focal Surface # Radius Thickness Material Index Abbe # Length0 Object Plano Infinity 1 Ape. Stop Plano −0.222 2 Lens 1 2.001 (ASP)0.435 Plastic 1.544 55.9 10.13 3 2.901 (ASP) 0.052 4 Lens 2 2.225 (ASP)0.300 Plastic 1.544 55.9 6.13 5 6.371 (ASP) 0.069 6 Lens 3 18.095 (ASP)0.240 Plastic 1.639 23.5 −7.31 7 3.695 (ASP) 0.210 8 Lens 4 7.946 (ASP)0.506 Plastic 1.544 55.9 6.57 9 −6.350 (ASP) 0.227 10 Lens 5 −1.891(ASP) 0.300 Plastic 1.639 23.5 −9.69 11 −2.890 (ASP) 0.280 12 Lens 62.599 (ASP) 0.594 Plastic 1.544 55.9 11.20 13 4.168 (ASP) 0.481 14 Lens7 2.716 (ASP) 0.707 Plastic 1.544 55.9 −7.91 15 1.512 (ASP) 0.500 16IR-cut filter Plano 0.210 Glass 1.517 64.2 — 17 Plano 0.289 18 ImagePlano — Note: Reference wavelength (d-line) is 587.6 nm.

TABLE 2 Aspheric Coefficients Surface # 2 3 4 5 6 k = −5.9908E−01−3.0097E+01 −1.1452E+01   2.0535E+01 −5.9339E+01 A4 = −5.7862E−03−9.1706E−02 −1.0524E−01   4.6961E−04   5.4930E−03 A6 =   1.3940E−02  8.5755E−02   1.0253E−01 −7.8872E−02 −2.7424E−02 A8 = −9.3242E−03−7.3114E−02 −8.7447E−02   6.4673E−02 −2.7639E−02 A10 = −4.9626E−03  4.3889E−02   5.0767E−02 −9.5782E−02 −3.2934E−03 A12 =   1.0752E−02−3.0365E−02 −2.7637E−02   8.0208E−02   6.5789E−02 A14 = −1.1043E−02−4.6505E−03 −1.4122E−02 −3.0362E−02 −3.1020E−02 Surface # 7 8 9 10 11 k= −7.9615E+00 −9.0000E+01   1.4243E+01   8.2179E−01 −2.0625E+00 A4 =−1.8289E−03 −2.0934E−02 −3.5530E−02   1.6292E−02 −7.1984E−02 A6 =−5.9409E−03 −9.9628E−03   2.3273E−02   7.8686E−02   7.8810E−02 A8 =−4.2299E−03 −2.8477E−03 −1.8072E−02 −7.9015E−02 −5.4664E−02 A10 =  1.1438E−02   4.4138E−04 −1.4066E−02   4.0536E−02   2.3319E−02 A12 =  2.1222E−05   1.0473E−03   1.8155E−02 −1.1532E−02 −5.1940E−03 A14 = — —−8.7767E−03   1.0754E−03   8.8086E−04 A16 = — —   1.1131E−03 — — Surface# 12 13 14 15 k = −8.3233E+00 −4.7309E+00 −2.4100E+00 −3.3664E+00 A4 =−2.4433E−02 −1.7888E−02 −1.8057E−01 −1.0849E−01 A6 =   8.9643E−03  5.0084E−03   5.5651E−02   4.4434E−02 A8 = −1.6391E−02 −4.6391E−03−1.0363E−02 −1.3274E−02 A10 =   8.3198E−03   1.2156E−03   1.4681E−03  2.4801E−03 A12 = −2.6273E−03 −1.1494E−04 −1.5026E−04 −2.7700E−04 A14 =  3.4067E−04   3.0094E−06   9.3145E−06   1.6704E−05 A16 = — —−2.7170E−07 −4.1573E−07

In Table 1, the curvature radius, the thickness and the focal length areshown in millimeters (mm). Surface numbers 0-18 represent the surfacessequentially arranged from the object-side to the image-side along theoptical axis. In Table 2, k represents the conic coefficient of theequation of the aspheric surface profiles. A4-A16 represent the asphericcoefficients ranging from the 4th order to the 16th order. The tablespresented below for each embodiment are the corresponding schematicparameter and aberration curves, and the definitions of the tables arethe same as Table 1 and Table 2 of the 1st embodiment. Therefore, anexplanation in this regard will not be provided again.

2nd Embodiment

FIG. 3 is a schematic view of an image capturing unit according to the2nd embodiment of the present disclosure. FIG. 4 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 2ndembodiment. In FIG. 3, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 295. The photographingoptical lens assembly includes, in order from an object side to an imageside, an aperture stop 200, a first lens element 210, a second lenselement 220, a third lens element 230, a fourth lens element 240, afifth lens element 250, a sixth lens element 260, a seventh lens element270, an IR-cut filter 280 and an image surface 290, wherein thephotographing optical lens assembly has a total of seven single andnon-cemented lens elements (210-270).

The first lens element 210 with positive refractive power has anobject-side surface 211 being convex in a paraxial region thereof and animage-side surface 212 being concave in a paraxial region thereof. Thefirst lens element 210 is made of plastic material and has theobject-side surface 211 and the image-side surface 212 being bothaspheric.

The second lens element 220 with positive refractive power has anobject-side surface 221 being convex in a paraxial region thereof and animage-side surface 222 being concave in a paraxial region thereof. Thesecond lens element 220 is made of plastic material and has theobject-side surface 221 and the image-side surface 222 being bothaspheric.

The third lens element 230 with negative refractive power has anobject-side surface 231 being convex in a paraxial region thereof and animage-side surface 232 being concave in a paraxial region thereof. Thethird lens element 230 is made of plastic material and has theobject-side surface 231 and the image-side surface 232 being bothaspheric.

The fourth lens element 240 with positive refractive power has anobject-side surface 241 being convex in a paraxial region thereof and animage-side surface 242 being convex in a paraxial region thereof. Thefourth lens element 240 is made of plastic material and has theobject-side surface 241 and the image-side surface 242 being bothaspheric. A center of the image-side surface 242 of the fourth lenselement 240 is a point closest to the image surface 290 on theimage-side surface 242.

The fifth lens element 250 with negative refractive power has anobject-side surface 251 being concave in a paraxial region thereof andan image-side surface 252 being convex in a paraxial region thereof. Thefifth lens element 250 is made of plastic material and has theobject-side surface 251 and the image-side surface 252 being bothaspheric.

The sixth lens element 260 with positive refractive power has anobject-side surface 261 being convex in a paraxial region thereof and animage-side surface 262 being concave in a paraxial region thereof. Thesixth lens element 260 is made of plastic material and has theobject-side surface 261 and the image-side surface 262 being bothaspheric. The image-side surface 262 of the sixth lens element 260 hasat least one convex shape in an off-axis region thereof.

The seventh lens element 270 with negative refractive power has anobject-side surface 271 being convex in a paraxial region thereof and animage-side surface 272 being concave in a paraxial region thereof. Theseventh lens element 270 is made of plastic material and has theobject-side surface 271 and the image-side surface 272 being bothaspheric. The image-side surface 272 of the seventh lens element 270 hasat least one convex shape in an off-axis region thereof.

The IR-cut filter 280 is made of glass and located between the seventhlens element 270 and the image surface 290, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 295 is disposed on or near the image surface 290 of thephotographing optical lens assembly.

The detailed optical data of the 2nd embodiment are shown in Table 3 andthe aspheric surface data are shown in Table 4 below.

TABLE 3 2nd Embodiment f = 4.38 mm, Fno = 1.93, HFOV = 38.9 deg.Curvature Focal Surface # Radius Thickness Material Index Abbe # Length0 Object Plano Infinity 1 Ape. Stop Plano −0.313 2 Lens 1 2.110 (ASP)0.528 Plastic 1.544 55.9 11.55 3 2.895 (ASP) 0.069 4 Lens 2 2.290 (ASP)0.317 Plastic 1.544 55.9 6.19 5 6.812 (ASP) 0.063 6 Lens 3 17.558 (ASP)0.245 Plastic 1.661 20.4 −9.63 7 4.645 (ASP) 0.274 8 Lens 4 19.454 (ASP)0.693 Plastic 1.544 55.9 8.17 9 −5.689 (ASP) 0.226 10 Lens 5 −1.990(ASP) 0.300 Plastic 1.661 20.4 −11.57 11 −2.852 (ASP) 0.229 12 Lens 62.803 (ASP) 0.694 Plastic 1.544 55.9 8.39 13 6.622 (ASP) 0.518 14 Lens 73.260 (ASP) 0.578 Plastic 1.544 55.9 −5.66 15 1.484 (ASP) 0.500 16IR-cut filter Plano 0.210 Glass 1.517 64.2 — 17 Plano 0.289 18 ImagePlano — Note: Reference wavelength (d-line) is 587.6 nm.

TABLE 4 Aspheric Coefficients Surface # 1 2 4 5 6 k = −5.7870E−01−1.8073E+01 −7.1797E+00   1.6654E+01 −7.6998E+01 A4 = −6.4332E−03−8.7705E−02 −1.2103E−01 −5.0375E−03   6.5598E−03 A6 =   2.3458E−02  8.7885E−02   9.9051E−02 −7.6423E−02 −2.4943E−02 A8 = −1.4263E−02−6.7379E−02 −7.4476E−02   6.9242E−02 −3.3675E−02 A10 = −6.6857E−03  5.0181E−02   5.7777E−02 −8.8139E−02 −9.9625E−03 A12 =   1.7139E−02−2.2358E−02 −2.3288E−02   8.1166E−02   6.3471E−02 A14 = −7.4851E−03−1.5296E−03 −6.1059E−03 −2.8272E−02 −2.6926E−02 Surface # 7 8 9 10 11 k= −5.8158E+00 −6.7458E+01   1.2405E+01   7.3488E−01 −1.5843E+00 A4 =−4.2450E−04 −4.0456E−02 −4.5868E−02   9.6228E−03 −5.9742E−02 A6 =−2.6529E−02 −6.3340E−03   2.4828E−02   8.0457E−02   7.7738E−02 A8 =  6.3026E−03 −2.9284E−03 −1.3828E−02 −7.7879E−02 −6.1153E−02 A10 =  6.6104E−03 −6.8268E−04 −1.3357E−02   4.1549E−02   3.1373E−02 A12 =−1.6196E−03   1.7938E−03   1.9774E−02 −1.0278E−02 −9.1738E−03 A14 = — —−8.2315E−03   9.7767E−04   1.2320E−03 A16 = — —   1.1145E−03 — — Surface# 12 13 14 15 k = −1.0272E+01 −7.8551E−01 −1.1158E+00 −3.7218E+00 A4 =−5.7377E−03   2.1714E−02 −1.8080E−01 −1.0719E−01 A6 = −7.4257E−04−1.9921E−02   5.5487E−02   4.3933E−02 A8 = −1.2406E−02   4.5602E−03−1.0378E−02 −1.3154E−02 A10 =   6.8824E−03 −7.1291E−04   1.4679E−03  2.4808E−03 A12 = −1.9798E−03   8.8713E−05 −1.5004E−04 −2.7742E−04 A14=   2.2570E−04 −5.3056E−06   9.3589E−06   1.6675E−05 A16 = — —−2.7317E−07 −4.1293E−07

In the 2nd embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 2nd embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 3 and Table 4 asthe following values and satisfy the following conditions:

2nd Embodiment f [mm] 4.38 Dr1r6/CT4 1.76 Fno 1.93 f2/|f1| 0.54 HFOV[deg.] 38.9 R12/f 1.51 V2/V3 2.75 (|R13| + |R14|)/f 1.08 V3 + V5 40.8R14/f 0.34 CT2/CT1 0.60 TL/ImgH 1.58 CT4/CT5 2.31 |f/f1| + |f/f2| 1.09ΣCT/Td 0.71 |Powmax| 0.77

3rd Embodiment

FIG. 5 is a schematic view of an image capturing unit according to the3rd embodiment of the present disclosure. FIG. 6 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 3rdembodiment. In FIG. 5, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 395. The photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element 310, an aperture stop 300, a second lenselement 320, a third lens element 330, a fourth lens element 340, afifth lens element 350, a sixth lens element 360, a seventh lens element370, an IR-cut filter 380 and an image surface 390, wherein thephotographing optical lens assembly has a total of seven single andnon-cemented lens elements (310-370).

The first lens element 310 with positive refractive power has anobject-side surface 311 being convex in a paraxial region thereof and animage-side surface 312 being concave in a paraxial region thereof. Thefirst lens element 310 is made of plastic material and has theobject-side surface 311 and the image-side surface 312 being bothaspheric.

The second lens element 320 with positive refractive power has anobject-side surface 321 being convex in a paraxial region thereof and animage-side surface 322 being concave in a paraxial region thereof. Thesecond lens element 320 is made of plastic material and has theobject-side surface 321 and the image-side surface 322 being bothaspheric.

The third lens element 330 with negative refractive power has anobject-side surface 331 being convex in a paraxial region thereof and animage-side surface 332 being concave in a paraxial region thereof. Thethird lens element 330 is made of plastic material and has theobject-side surface 331 and the image-side surface 332 being bothaspheric.

The fourth lens element 340 with positive refractive power has anobject-side surface 341 being convex in a paraxial region thereof and animage-side surface 342 being convex in a paraxial region thereof. Thefourth lens element 340 is made of plastic material and has theobject-side surface 341 and the image-side surface 342 being bothaspheric. A center of the image-side surface 342 of the fourth lenselement 340 is a point closest to the image surface 390 on theimage-side surface 342.

The fifth lens element 350 with negative refractive power has anobject-side surface 351 being concave in a paraxial region thereof andan image-side surface 352 being convex in a paraxial region thereof. Thefifth lens element 350 is made of plastic material and has theobject-side surface 351 and the image-side surface 352 being bothaspheric.

The sixth lens element 360 with positive refractive power has anobject-side surface 361 being convex in a paraxial region thereof and animage-side surface 362 being concave in a paraxial region thereof. Thesixth lens element 360 is made of plastic material and has theobject-side surface 361 and the image-side surface 362 being bothaspheric. The image-side surface 362 of the sixth lens element 360 hasat least one convex shape in an off-axis region thereof.

The seventh lens element 370 with negative refractive power has anobject-side surface 371 being convex in a paraxial region thereof and animage-side surface 372 being concave in a paraxial region thereof. Theseventh lens element 370 is made of plastic material and has theobject-side surface 371 and the image-side surface 372 being bothaspheric. The image-side surface 372 of the seventh lens element 370 hasat least one convex shape in an off-axis region thereof.

The IR-cut filter 380 is made of glass and located between the seventhlens element 370 and the image surface 390, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 395 is disposed on or near the image surface 390 of thephotographing optical lens assembly.

The detailed optical data of the 3rd embodiment are shown in Table 5 andthe aspheric surface data are shown in Table 6 below.

TABLE 5 3rd Embodiment f = 3.62 mm, Fno = 2.32, HFOV = 45.5 deg. FocalSurface # Curvature Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Lens 1 3.360 (ASP) 0.320 Plastic 1.544 55.9278.80 2 3.321 (ASP) 0.086 3 Ape. Stop Plano −0.017 4 Lens 2 2.154 (ASP)0.378 Plastic 1.544 55.9 4.48 5 17.490 (ASP) 0.050 6 Lens 3 7.518 (ASP)0.240 Plastic 1.639 23.5 −11.64 7 3.692 (ASP) 0.305 8 Lens 4 27.833(ASP) 0.714 Plastic 1.544 55.9 7.55 9 −4.777 (ASP) 0.162 10 Lens 5−1.754 (ASP) 0.301 Plastic 1.639 23.5 −5.83 11 −3.533 (ASP) 0.051 12Lens 6 1.835 (ASP) 0.686 Plastic 1.544 55.9 5.12 13 4.666 (ASP) 0.518 14Lens 7 1.579 (ASP) 0.612 Plastic 1.535 55.7 −11.38 15 1.084 (ASP) 0.64016 IR-cut filter Plano 0.210 Glass 1.517 64.2 — 17 Plano 0.169 18 ImagePlano — — Note: Reference wavelength (d-line) is 587.6 nm.

TABLE 6 Aspheric Coefficients Surface # 1 2 4 5 6 k = −4.0388E+00−4.0479E+01 −1.2202E+01   3.9860E+01   4.1242E+01 A4 = −2.0345E−02−1.0622E−01 −1.1226E−01 −6.3895E−02 −1.3085E−02 A6 =   4.3482E−02  1.1550E−01   8.0254E−02 −1.0958E−01 −1.2807E−02 A8 = −3.7139E−02  8.1632E−03 −1.3731E−01   1.1170E−01   3.9027E−03 A10 =   2.1072E−02−1.6401E−01   1.9577E−02 −8.7544E−02 −3.9306E−02 A12 =   3.3979E−03  1.9207E−01   2.0689E−01   1.3522E−02   2.0635E−02 A14 = −5.8158E−03−8.4909E−02 −2.4224E−01 −2.0739E−02 −1.1133E−02 Surface # 7 8 9 10 11 k= −1.9093E+00   2.8779E+01   1.1400E+01   6.4893E−01 −1.1417E+00 A4 =  7.1973E−03 −4.9661E−02 −9.9347E−02 −7.4258E−02 −1.5214E−01 A6 =−2.4305E−03 −1.1104E−02 −2.3334E−01   6.6002E−02   1.8219E−01 A8 =−1.0553E−02 −1.7323E−02   6.9474E−01   2.2187E−01 −7.9956E−02 A10 =−8.9745E−03 −5.5200E−03 −9.0971E−01 −2.4071E−01   2.2186E−02 A12 =  7.4779E−06   1.3020E−02   6.9902E−01   9.7043E−02 −4.8422E−03 A14 = —— −3.0184E−01 −1.4196E−02   5.6203E−04 A16 = — —   5.5578E−02 — —Surface # 12 13 14 15 k = −8.3116E+00 −1.8332E+00 −2.6850E+00−2.3600E+00 A4 =   5.3473E−02   6.3765E−02 −1.8475E−01 −1.3477E−01 A6 =−4.8425E−02 −4.2536E−02   5.0980E−02   5.6824E−02 A8 =   1.9203E−02  1.1102E−02 −7.2147E−03 −1.6122E−02 A10 = −5.8116E−03 −1.7475E−03  6.7638E−04   2.6621E−03 A12 =   1.0084E−03   1.5769E−04 −4.8856E−05−2.4417E−04 A14 = −6.7875E−05 −6.0019E−06   2.5358E−06   1.1551E−05 A16= — — −6.3555E−08 −2.1972E−07

In the 3rd embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 3rd embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 5 and Table 6 asthe following values and satisfy the following conditions:

3rd Embodiment f [mm] 3.62 Dr1r6/CT4 1.48 Fno 2.32 f2/|f1| 0.02 HFOV[deg.] 45.5 R12/f 1.29 V2/V3 2.38 (|R13| + |R14|)/f 0.74 V3 + V5 47.0R14/f 0.30 CT2/CT1 1.18 TL/ImgH 1.49 CT4/CT5 2.37 |f/f1| + |f/f2| 0.82ΣCT/Td 0.74 |Powmax| 0.81

4th Embodiment

FIG. 7 is a schematic view of an image capturing unit according to the4th embodiment of the present disclosure. FIG. 8 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 4thembodiment. In FIG. 7, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 495. The photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element 410, a second lens element 420, an aperturestop 400, a third lens element 430, a fourth lens element 440, a fifthlens element 450, a sixth lens element 460, a seventh lens element 470,an IR-cut filter 480 and an image surface 490, wherein the photographingoptical lens assembly has a total of seven single and non-cemented lenselements (410-470).

The first lens element 410 with positive refractive power has anobject-side surface 411 being convex in a paraxial region thereof and animage-side surface 412 being convex in a paraxial region thereof. Thefirst lens element 410 is made of plastic material and has theobject-side surface 411 and the image-side surface 412 being bothaspheric.

The second lens element 420 with positive refractive power has anobject-side surface 421 being convex in a paraxial region thereof and animage-side surface 422 being concave in a paraxial region thereof. Thesecond lens element 420 is made of plastic material and has theobject-side surface 421 and the image-side surface 422 being bothaspheric.

The third lens element 430 with negative refractive power has anobject-side surface 431 being convex in a paraxial region thereof and animage-side surface 432 being concave in a paraxial region thereof. Thethird lens element 430 is made of plastic material and has theobject-side surface 431 and the image-side surface 432 being bothaspheric.

The fourth lens element 440 with positive refractive power has anobject-side surface 441 being convex in a paraxial region thereof and animage-side surface 442 being convex in a paraxial region thereof. Thefourth lens element 440 is made of plastic material and has theobject-side surface 441 and the image-side surface 442 being bothaspheric. A center of the image-side surface 442 of the fourth lenselement 440 is a point closest to the image surface 490 on theimage-side surface 442.

The fifth lens element 450 with positive refractive power has anobject-side surface 451 being concave in a paraxial region thereof andan image-side surface 452 being convex in a paraxial region thereof. Thefifth lens element 450 is made of plastic material and has theobject-side surface 451 and the image-side surface 452 being bothaspheric.

The sixth lens element 460 with negative refractive power has anobject-side surface 461 being concave in a paraxial region thereof andan image-side surface 462 being concave in a paraxial region thereof.The sixth lens element 460 is made of plastic material and has theobject-side surface 461 and the image-side surface 462 being bothaspheric. The image-side surface 462 of the sixth lens element 460 hasat least one convex shape in an off-axis region thereof.

The seventh lens element 470 with negative refractive power has anobject-side surface 471 being convex in a paraxial region thereof and animage-side surface 472 being concave in a paraxial region thereof. Theseventh lens element 470 is made of plastic material and has theobject-side surface 471 and the image-side surface 472 being bothaspheric. The image-side surface 472 of the seventh lens element 470 hasat least one convex shape in an off-axis region thereof.

The IR-cut filter 480 is made of glass and located between the seventhlens element 470 and the image surface 490, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 495 is disposed on or near the image surface 490 of thephotographing optical lens assembly.

The detailed optical data of the 4th embodiment are shown in Table 7 andthe aspheric surface data are shown in Table 8 below.

TABLE 7 4th Embodiment f = 4.67 mm, Fno = 2.35, HFOV = 36.8 deg. FocalSurface # Curvature Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Lens 1 4.004 (ASP) 0.505 Plastic 1.544 55.9 6.982 −71.361 (ASP) 0.076 3 Lens 2 4.039 (ASP) 0.333 Plastic 1.544 55.9 9.404 18.668 (ASP) 0.005 5 Ape. Stop Plano 0.045 6 Lens 3 10.076 (ASP) 0.252Plastic 1.639 23.5 −7.43 7 3.197 (ASP) 0.385 8 Lens 4 6.861 (ASP) 0.550Plastic 1.544 55.9 6.50 9 −7.101 (ASP) 0.307 10 Lens 5 −1.984 (ASP)0.498 Plastic 1.544 55.9 20.32 11 −1.831 (ASP) 0.243 12 Lens 6 −116.018(ASP) 0.758 Plastic 1.639 23.5 −7.90 13 5.292 (ASP) 0.350 14 Lens 72.834 (ASP) 0.939 Plastic 1.544 55.9 −13.52 15 1.807 (ASP) 0.640 16IR-cut filter Plano 0.100 Glass 1.517 64.2 — 17 Plano 0.214 18 ImagePlano — — Note: Reference wavelength (d-line) is 587.6 nm.

TABLE 8 Aspheric Coefficients Surface # 1 2 3 4 6 k = −3.6565E+00  9.0000E+01 −7.6309E+00 −1.0000E+00 −7.4925E+01 A4 = −8.6100E−03−7.2708E−02 −7.2703E−02   1.3070E−02   1.3758E−03 A6 = −3.8418E−03  1.0026E−01   1.0658E−01 −1.0564E−01 −3.6431E−02 A8 =   8.0492E−03−8.5540E−02 −1.1657E−01   5.5535E−02 −2.3320E−02 A10 = −7.1515E−03  4.4242E−02   4.6288E−02 −7.2527E−02   1.6665E−02 A12 =   3.0658E−03−1.1987E−02   2.3859E−03   1.0726E−01   5.9465E−02 A14 = −4.7692E−04  1.3608E−03 −4.5682E−03 −4.7626E−02 −4.0104E−02 Surface # 7 8 9 10 11 k= −1.2814E+01 −9.0000E+01   1.4197E+01   8.3719E−01 −1.1348E+01 A4 =−9.3402E−03 −5.7363E−03 −5.0454E−02   2.1556E−02 −9.1469E−02 A6 =−2.3807E−03 −7.3057E−03   2.7742E−02   2.4165E−02   7.5936E−02 A8 =  6.2161E−03 −2.4487E−03 −1.7272E−02   4.7832E−03 −5.3862E−02 A10 =  1.4036E−03   2.2376E−03 −1.3138E−02 −2.6945E−02   2.3442E−02 A12 =−4.1680E−06   1.2003E−03   1.9781E−02   2.2513E−02 −5.2889E−03 A14 = — —−8.2637E−03 −5.0563E−03   7.0466E−04 A16 = — —   1.1134E−03 — — Surface# 12 13 14 15 k =   9.0000E+01 −9.0000E+01 −2.1324E+00 −2.8934E+00 A4 =  6.2764E−02 −1.6772E−02 −1.9344E−01 −9.9396E−02 A6 = −1.2331E−01  4.7185E−03   8.4367E−02   4.0125E−02 A8 =   1.0025E−01 −4.8129E−03−3.0448E−02 −1.1453E−02 A10 = −5.9173E−02   1.2078E−03   7.9586E−03  2.0242E−03 A12 =   1.8921E−02 −1.1401E−04 −1.2523E−03 −2.1108E−04 A14= −2.7217E−03   3.3298E−06   1.0511E−04   1.1914E−05 A16 = — —−3.6505E−06 −2.8170E−07

In the 4th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 4th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 7 and Table 8 asthe following values and satisfy the following conditions:

4th Embodiment f [mm] 4.67 Dr1r6/CT4 2.21 Fno 2.35 f2/|f1| 1.35 HFOV[deg.] 36.8 R12/f 1.13 V2/V3 2.38 (|R13| + |R14|)/f 0.99 V3 + V5 79.4R14/f 0.39 CT2/CT1 0.66 TL/ImgH 1.70 CT4/CT5 1.10 |f/f1| + |f/f2| 1.17ΣCT/Td 0.73 |Powmax| 0.72

5th Embodiment

FIG. 9 is a schematic view of an image capturing unit according to the5th embodiment of the present disclosure. FIG. 10 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 5thembodiment. In FIG. 9, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 595. The photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element 510, a second lens element 520, an aperturestop 500, a third lens element 530, a fourth lens element 540, a fifthlens element 550, a sixth lens element 560, a seventh lens element 570,an IR-cut filter 580 and an image surface 590, wherein the photographingoptical lens assembly has a total of seven single and non-cemented lenselements (510-570).

The first lens element 510 with positive refractive power has anobject-side surface 511 being convex in a paraxial region thereof and animage-side surface 512 being convex in a paraxial region thereof. Thefirst lens element 510 is made of plastic material and has theobject-side surface 511 and the image-side surface 512 being bothaspheric.

The second lens element 520 with positive refractive power has anobject-side surface 521 being convex in a paraxial region thereof and animage-side surface 522 being concave in a paraxial region thereof. Thesecond lens element 520 is made of plastic material and has theobject-side surface 521 and the image-side surface 522 being bothaspheric.

The third lens element 530 with negative refractive power has anobject-side surface 531 being convex in a paraxial region thereof and animage-side surface 532 being concave in a paraxial region thereof. Thethird lens element 530 is made of plastic material and has theobject-side surface 531 and the image-side surface 532 being bothaspheric.

The fourth lens element 540 with positive refractive power has anobject-side surface 541 being convex in a paraxial region thereof and animage-side surface 542 being convex in a paraxial region thereof. Thefourth lens element 540 is made of plastic material and has theobject-side surface 541 and the image-side surface 542 being bothaspheric. A center of the image-side surface 542 of the fourth lenselement 540 is a point closest to the image surface 590 on theimage-side surface 542.

The fifth lens element 550 with positive refractive power has anobject-side surface 551 being concave in a paraxial region thereof andan image-side surface 552 being convex in a paraxial region thereof. Thefifth lens element 550 is made of plastic material and has theobject-side surface 551 and the image-side surface 552 being bothaspheric.

The sixth lens element 560 with negative refractive power has anobject-side surface 561 being concave in a paraxial region thereof andan image-side surface 562 being concave in a paraxial region thereof.The sixth lens element 560 is made of plastic material and has theobject-side surface 561 and the image-side surface 562 being bothaspheric. The image-side surface 562 of the sixth lens element 560 hasat least one convex shape in an off-axis region thereof.

The seventh lens element 570 with negative refractive power has anobject-side surface 571 being convex in a paraxial region thereof and animage-side surface 572 being concave in a paraxial region thereof. Theseventh lens element 570 is made of plastic material and has theobject-side surface 571 and the image-side surface 572 being bothaspheric. The image-side surface 572 of the seventh lens element 570 hasat least one convex shape in an off-axis region thereof.

The IR-cut filter 580 is made of glass and located between the seventhlens element 570 and the image surface 590, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 595 is disposed on or near the image surface 590 of thephotographing optical lens assembly.

The detailed optical data of the 5th embodiment are shown in Table 9 andthe aspheric surface data are shown in Table 10 below.

TABLE 9 5th Embodiment f = 4.74 mm, Fno = 2.45, HFOV = 37.2 deg. FocalSurface # Curvature Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Lens 1 4.000 (ASP) 0.482 Plastic 1.544 55.9 7.022 −82.116 (ASP) 0.061 3 Lens 2 3.560 (ASP) 0.338 Plastic 1.544 55.9 9.454 11.183 (ASP) 0.024 5 Ape. Stop Plano 0.035 6 Lens 3 9.076 (ASP) 0.255Plastic 1.633 23.4 −7.47 7 3.074 (ASP) 0.384 8 Lens 4 10.131 (ASP) 0.707Plastic 1.544 55.9 8.12 9 −7.643 (ASP) 0.517 10 Lens 5 −2.217 (ASP)0.435 Plastic 1.544 55.9 6.27 11 −1.437 (ASP) 0.050 12 Lens 6 −15.244(ASP) 0.967 Plastic 1.633 23.4 −7.72 13 7.359 (ASP) 0.478 14 Lens 76.109 (ASP) 0.442 Plastic 1.514 56.8 −5.57 15 1.900 (ASP) 0.500 16IR-cut filter Plano 0.175 Glass 1.517 64.2 — 17 Plano 0.276 18 ImagePlano — — Note: Reference wavelength (d-line) is 587.6 nm.

TABLE 10 Aspheric Coefficients Surface # 1 2 3 4 6 k = −6.5077E+00−1.0000E+00 −3.4665E+00 −2.3034E+01   2.1153E+01 A4 = −1.1247E−02−7.7199E−02 −5.7049E−02   2.1782E−02   6.2080E−03 A6 = −5.5906E−03  9.9825E−02   6.9638E−02 −1.3086E−01 −3.5537E−02 A8 =   8.3649E−03−8.5199E−02 −5.3569E−02   9.7419E−02 −1.1061E−02 A10 = −7.0208E−03  4.4503E−02 −2.6021E−02 −1.2158E−01   1.7559E−02 A12 =   3.0683E−03−1.2041E−02   4.4256E−02   1.4397E−01   3.8599E−02 A14 = −4.5265E−04  1.3898E−03 −1.4176E−02 −6.0780E−02 −2.7582E−02 Surface # 7 8 9 10 11 k= −9.3365E+00 −9.0000E+01   2.2354E+01   1.1590E+00 −5.6217E+00 A4 =  9.0308E−03 −2.8978E−02 −4.7325E−02 −3.4279E−02 −7.6069E−02 A6 =  8.1557E−03 −1.0549E−02   7.7165E−03   1.0867E−01   7.3412E−02 A8 =−5.6574E−04 −5.4052E−03 −1.5716E−02 −9.5569E−02 −5.1598E−02 A10 =−2.0858E−03   3.6967E−03 −1.2275E−02   3.5766E−02   2.3723E−02 A12 =  3.4249E−07 −4.1886E−03   1.9078E−02 −2.5488E−03 −5.4961E−03 A14 = — —−8.3590E−03 −5.8676E−04   4.3247E−04 A16 = — —   1.1506E−03 — — Surface# 12 13 14 15 k =   8.2775E+00 −6.9068E+01 −2.7973E+00 −5.8349E+00 A4 =  7.7159E−02 −2.3245E−02 −1.8052E−01 −9.4898E−02 A6 = −1.1982E−01  9.9937E−03   7.2566E−02   4.0280E−02 A8 =   8.7260E−02 −5.2950E−03−1.9795E−02 −1.3210E−02 A10 = −4.3408E−02   1.3288E−03   3.9063E−03  2.7977E−03 A12 =   1.2196E−02 −1.5993E−04 −5.0398E−04 −3.5299E−04 A14= −1.5072E−03   7.4386E−06   3.7380E−05   2.4000E−05 A16 = — —−1.2134E−06 −6.7423E−07

In the 5th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 5th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 9 and Table 10as the following values and satisfy the following conditions:

5th Embodiment f [mm] 4.74 Dr1r6/CT4 1.69 Fno 2.45 f2/|f1| 1.35 HFOV[deg.] 37.2 R12/f 1.55 V2/V3 2.39 (|R13| + |R14|)/f 1.69 V3 + V5 79.3R14/f 0.40 CT2/CT1 0.70 TL/ImgH 1.68 CT4/CT5 1.63 |f/f1| + |f/f2| 1.18ΣCT/Td 0.70 |Powmax| 0.85

6th Embodiment

FIG. 11 is a schematic view of an image capturing unit according to the6th embodiment of the present disclosure. FIG. 12 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 6thembodiment. In FIG. 11, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 695. The photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element 610, an aperture stop 600, a second lenselement 620, a third lens element 630, a fourth lens element 640, afifth lens element 650, a sixth lens element 660, a seventh lens element670, an IR-cut filter 680 and an image surface 690, wherein thephotographing optical lens assembly has a total of seven single andnon-cemented lens elements (610-670).

The first lens element 610 with negative refractive power has anobject-side surface 611 being convex in a paraxial region thereof and animage-side surface 612 being concave in a paraxial region thereof. Thefirst lens element 610 is made of plastic material and has theobject-side surface 611 and the image-side surface 612 being bothaspheric.

The second lens element 620 with positive refractive power has anobject-side surface 621 being convex in a paraxial region thereof and animage-side surface 622 being convex in a paraxial region thereof. Thesecond lens element 620 is made of plastic material and has theobject-side surface 621 and the image-side surface 622 being bothaspheric.

The third lens element 630 with negative refractive power has anobject-side surface 631 being convex in a paraxial region thereof and animage-side surface 632 being concave in a paraxial region thereof. Thethird lens element 630 is made of plastic material and has theobject-side surface 631 and the image-side surface 632 being bothaspheric.

The fourth lens element 640 with positive refractive power has anobject-side surface 641 being concave in a paraxial region thereof andan image-side surface 642 being convex in a paraxial region thereof. Thefourth lens element 640 is made of plastic material and has theobject-side surface 641 and the image-side surface 642 being bothaspheric. A center of the image-side surface 642 of the fourth lenselement 640 is a point closest to the image surface 690 on theimage-side surface 642.

The fifth lens element 650 with negative refractive power has anobject-side surface 651 being concave in a paraxial region thereof andan image-side surface 652 being convex in a paraxial region thereof. Thefifth lens element 650 is made of plastic material and has theobject-side surface 651 and the image-side surface 652 being bothaspheric.

The sixth lens element 660 with positive refractive power has anobject-side surface 661 being convex in a paraxial region thereof and animage-side surface 662 being concave in a paraxial region thereof. Thesixth lens element 660 is made of plastic material and has theobject-side surface 661 and the image-side surface 662 being bothaspheric. The image-side surface 662 of the sixth lens element 660 hasat least one convex shape in an off-axis region thereof.

The seventh lens element 670 with negative refractive power has anobject-side surface 671 being convex in a paraxial region thereof and animage-side surface 672 being concave in a paraxial region thereof. Theseventh lens element 670 is made of plastic material and has theobject-side surface 671 and the image-side surface 672 being bothaspheric. The image-side surface 672 of the seventh lens element 670 hasat least one convex shape in an off-axis region thereof.

The IR-cut filter 680 is made of glass and located between the seventhlens element 670 and the image surface 690, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 695 is disposed on or near the image surface 690 of thephotographing optical lens assembly.

The detailed optical data of the 6th embodiment are shown in Table 11and the aspheric surface data are shown in Table 12 below.

TABLE 11 6th Embodiment f = 3.49 mm, Fno = 2.32, HFOV = 46.5 deg. FocalSurface # Curvature Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Lens 1 16.525 (ASP) 0.241 Plastic 1.661 20.4−116.48 2 13.525 (ASP) 0.167 3 Ape. Stop Plano −0.067 4 Lens 2 2.463(ASP) 0.417 Plastic 1.544 55.9 4.11 5 −22.649 (ASP) 0.050 6 Lens 3 4.682(ASP) 0.240 Plastic 1.661 20.4 −13.50 7 3.008 (ASP) 0.393 8 Lens 4−22.037 (ASP) 0.789 Plastic 1.544 55.9 11.46 9 −4.923 (ASP) 0.192 10Lens 5 −1.755 (ASP) 0.300 Plastic 1.661 20.4 −5.78 11 −3.469 (ASP) 0.03512 Lens 6 1.780 (ASP) 0.701 Plastic 1.544 55.9 4.15 13 7.242 (ASP) 0.54714 Lens 7 1.200 (ASP) 0.450 Plastic 1.544 55.9 −9.56 15 0.846 (ASP)0.640 16 IR-cut filter Plano 0.210 Glass 1.517 64.2 — 17 Plano 0.159 18Image Plano — — Note: Reference wavelength (d-line) is 587.6 nm.

TABLE 12 Aspheric Coefficients Surface # 1 2 4 5 6 k = −4.2880E+01−9.0000E+01 −7.7548E+00   9.0000E+01   1.6158E+01 A4 = −3.1445E−02−9.1230E−02 −7.8298E−02 −8.0734E−02 −3.0360E−02 A6 =   3.9708E−02  1.3834E−01   1.3560E−01 −6.3416E−02 −1.3646E−02 A8 = −1.7702E−02−1.1591E−02 −1.7813E−01   9.5772E−02   9.9323E−03 A10 =   4.4459E−03−1.7441E−01 −1.6113E−01 −1.5921E−01 −3.3447E−02 A12 =   8.4300E−03  2.4007E−01   6.2641E−01   1.4276E−01   2.4604E−02 A14 = −4.2081E−03−9.3551E−02 −4.8852E−01 −8.6828E−02 −1.6363E−02 Surface # 7 8 9 10 11 k= −1.1018E+00 −5.8961E+01   9.1812E+00   5.3747E−01   5.0154E−01 A4 =  9.8558E−03 −7.2382E−02 −1.9008E−01 −1.9274E−01 −2.3342E−01 A6 =−9.2021E−03 −7.7064E−03   7.0863E−02   3.3690E−01   3.0010E−01 A8 =  1.7490E−03 −2.2342E−02   1.5924E−02 −1.7979E−01 −1.8878E−01 A10 =−8.8900E−03 −1.5190E−02 −3.4754E−02   7.7186E−02   7.7136E−02 A12 =  7.4777E−06   1.5444E−02   2.5296E−02 −2.8147E−02 −1.8016E−02 A14 = — —−1.3518E−02   5.5859E−03   1.7410E−03 A16 = — —   2.7418E−03 — — Surface# 12 13 14 15 k = −8.3116E+00   2.0977E+00 −2.9270E+00 −2.5786E+00 A4 =  5.8493E−02   1.1209E−01 −1.9398E−01 −1.2869E−01 A6 = −3.7783E−02−6.6964E−02   6.1841E−02   5.2819E−02 A8 =   8.3286E−03   1.7636E−02−1.2238E−02 −1.4481E−02 A10 = −1.3206E−03 −2.6860E−03   1.6929E−03  2.3219E−03 A12 =   1.6647E−04   2.2066E−04 −1.5030E−04 −2.0874E−04 A14= −9.6327E−06 −7.4066E−06   7.4534E−06   9.8173E−06 A16 = — —−1.5528E−07 −1.8870E−07

In the 6th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 6th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 11 and Table 12as the following values and satisfy the following conditions:

6th Embodiment f [mm] 3.49 Dr1r6/CT4 1.33 Fno 2.32 f2/|f1| 0.04 HFOV[deg.] 46.5 R12/f 2.08 V2/V3 2.75 (|R13| + |R14|)/f 0.59 V3 + V5 40.8R14/f 0.24 CT2/CT1 1.73 TL/ImgH 1.50 CT4/CT5 2.63 |f/f1| + |f/f2| 0.88ΣCT/Td 0.70 |Powmax| 0.85

7th Embodiment

FIG. 13 is a schematic view of an image capturing unit according to the7th embodiment of the present disclosure. FIG. 14 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 7thembodiment. In FIG. 13, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 795. The photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element 710, an aperture stop 700, a second lenselement 720, a third lens element 730, a fourth lens element 740, afifth lens element 750, a sixth lens element 760, a seventh lens element770, an IR-cut filter 780 and an image surface 790, wherein thephotographing optical lens assembly has a total of seven single andnon-cemented lens elements (710-770).

The first lens element 710 with positive refractive power has anobject-side surface 711 being concave in a paraxial region thereof andan image-side surface 712 being convex in a paraxial region thereof. Thefirst lens element 710 is made of plastic material and has theobject-side surface 711 and the image-side surface 712 being bothaspheric.

The second lens element 720 with positive refractive power has anobject-side surface 721 being convex in a paraxial region thereof and animage-side surface 722 being convex in a paraxial region thereof. Thesecond lens element 720 is made of plastic material and has theobject-side surface 721 and the image-side surface 722 being bothaspheric.

The third lens element 730 with negative refractive power has anobject-side surface 731 being convex in a paraxial region thereof and animage-side surface 732 being concave in a paraxial region thereof. Thethird lens element 730 is made of plastic material and has theobject-side surface 731 and the image-side surface 732 being bothaspheric.

The fourth lens element 740 with positive refractive power has anobject-side surface 741 being concave in a paraxial region thereof andan image-side surface 742 being convex in a paraxial region thereof. Thefourth lens element 740 is made of plastic material and has theobject-side surface 741 and the image-side surface 742 being bothaspheric. A center of the image-side surface 742 of the fourth lenselement 740 is a point closest to the image surface 790 on theimage-side surface 742.

The fifth lens element 750 with negative refractive power has anobject-side surface 751 being concave in a paraxial region thereof andan image-side surface 752 being convex in a paraxial region thereof. Thefifth lens element 750 is made of plastic material and has theobject-side surface 751 and the image-side surface 752 being bothaspheric.

The sixth lens element 760 with positive refractive power has anobject-side surface 761 being convex in a paraxial region thereof and animage-side surface 762 being concave in a paraxial region thereof. Thesixth lens element 760 is made of plastic material and has theobject-side surface 761 and the image-side surface 762 being bothaspheric. The image-side surface 762 of the sixth lens element 760 hasat least one convex shape in an off-axis region thereof.

The seventh lens element 770 with negative refractive power has anobject-side surface 771 being convex in a paraxial region thereof and animage-side surface 772 being concave in a paraxial region thereof. Theseventh lens element 770 is made of plastic material and has theobject-side surface 771 and the image-side surface 772 being bothaspheric. The image-side surface 772 of the seventh lens element 770 hasat least one convex shape in an off-axis region thereof.

The IR-cut filter 780 is made of glass and located between the seventhlens element 770 and the image surface 790, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 795 is disposed on or near the image surface 790 of thephotographing optical lens assembly.

The detailed optical data of the 7th embodiment are shown in Table 13and the aspheric surface data are shown in Table 14 below.

TABLE 13 7th Embodiment f = 3.39 mm, Fno = 2.40, HFOV = 47.5 deg. FocalSurface # Curvature Radius Thickness Material Index Abbe # Length 0Object Plano Infinity 1 Lens 1 −12.442 (ASP) 0.291 Plastic 1.583 30.247.57 2 −8.665 (ASP) 0.141 3 Ape. Stop Plano −0.042 4 Lens 2 3.046 (ASP)0.404 Plastic 1.544 55.9 4.27 5 −9.327 (ASP) 0.050 6 Lens 3 4.030 (ASP)0.240 Plastic 1.639 23.5 −9.58 7 2.374 (ASP) 0.352 8 Lens 4 −118.122(ASP) 0.850 Plastic 1.544 55.9 9.72 9 −5.076 (ASP) 0.158 10 Lens 5−1.729 (ASP) 0.300 Plastic 1.639 23.5 −4.36 11 −4.862 (ASP) 0.035 12Lens 6 1.604 (ASP) 0.660 Plastic 1.544 55.9 3.59 13 7.710 (ASP) 0.541 14Lens 7 1.088 (ASP) 0.450 Plastic 1.544 55.9 −12.45 15 0.801 (ASP) 0.64016 IR-cut filter Plano 0.145 Glass 1.517 64.2 — 17 Plano 0.217 18 ImagePlano — — Note: Reference wavelength (d-line) is 587.6 nm.

TABLE 14 Aspheric Coefficients Surface # 1 2 4 5 6 k = −1.0000E+00−1.0000E+00 −1.0051E+01   1.0067E+01   1.1608E+01 A4 = −2.7918E−02−6.4970E−02 −7.9559E−02 −9.3079E−02 −4.5725E−02 A6 =   3.5639E−02  1.3373E−01   1.3723E−01 −5.0292E−02 −1.8694E−02 A8 = −1.3340E−02−2.4548E−02 −2.0515E−01   9.5414E−02   1.0812E−02 A10 =   3.6662E−03−1.6794E−01 −1.1714E−01 −1.7371E−01 −2.9936E−02 A12 =   4.8552E−03  2.4483E−01   5.5936E−01   1.3757E−01   2.5259E−02 A14 = −2.5441E−03−9.8809E−02 −4.6191E−01 −7.2913E−02 −1.6131E−02 Surface # 7 8 9 10 11 k= −2.1631E+00 −8.4362E+01   7.9917E+00   5.2421E−01   2.4030E+00 A4 =  4.0571E−03 −5.8316E−02 −1.8474E−01 −1.6626E−01 −2.8297E−01 A6 =−1.2431E−02   7.3058E−04 −2.3601E−02   1.7091E−01   3.4813E−01 A8 =  3.9891E−03 −1.6299E−02   1.8042E−01   1.1548E−01 −2.1352E−01 A10 =−6.7254E−03 −1.7222E−02 −1.5354E−01 −1.5575E−01   8.3897E−02 A12 =  7.4773E−06   1.9047E−02   7.5191E−02   5.8096E−02 −1.8979E−02 A14 = —— −3.1678E−02 −6.6933E−03   1.8046E−03 A16 = — —   7.0572E−03 — —Surface # 12 13 14 15 k = −8.3116E+00   3.5518E+00 −2.7014E+00−2.4907E+00 A4 =   6.2273E−02   1.2043E−01 −1.9075E−01 −1.2897E−01 A6 =−3.6519E−02 −6.9841E−02   5.6982E−02   5.2108E−02 A8 =   7.3102E−03  1.8051E−02 −1.0420E−02 −1.4076E−02 A10 = −9.3557E−04 −2.6924E−03  1.3622E−03   2.2274E−03 A12 =   9.6775E−05   2.1685E−04 −1.1826E−04−1.9785E−04 A14 = −5.1374E−06 −7.1614E−06   5.8680E−06   9.2044E−06 A16= — — −1.2376E−07 −1.7520E−07

In the 7th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 7th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 13 and Table 14as the following values and satisfy the following conditions:

7th Embodiment f [mm] 3.39 Dr1r6/CT4 1.28 Fno 2.40 f2/|f1| 0.09 HFOV[deg.] 47.5 R12/f 2.27 V2/V3 2.38 (|R13| + |R14|)/f 0.56 V3 + V5 47.0R14/f 0.24 CT2/CT1 1.39 TL/ImgH 1.49 CT4/CT5 2.83 |f/f1| + |f/f2| 0.87ΣCT/Td 0.72 |Powmax| 0.94

8th Embodiment

FIG. 15 is a schematic view of an image capturing unit according to the8th embodiment of the present disclosure. FIG. 16 shows, in order fromleft to right, spherical aberration curves, astigmatic field curves anda distortion curve of the image capturing unit according to the 8thembodiment. In FIG. 15, the image capturing unit includes thephotographing optical lens assembly (its reference numeral is omitted)of the present disclosure and an image sensor 895. The photographingoptical lens assembly includes, in order from an object side to an imageside, a first lens element 810, an aperture stop 800, a second lenselement 820, a third lens element 830, a fourth lens element 840, afifth lens element 850, a sixth lens element 860, a seventh lens element870, an IR-cut filter 880 and an image surface 890, wherein thephotographing optical lens assembly has a total of seven single andnon-cemented lens elements (810-870).

The first lens element 810 with positive refractive power has anobject-side surface 811 being convex in a paraxial region thereof and animage-side surface 812 being concave in a paraxial region thereof. Thefirst lens element 810 is made of plastic material and has theobject-side surface 811 and the image-side surface 812 being bothaspheric.

The second lens element 820 with positive refractive power has anobject-side surface 821 being convex in a paraxial region thereof and animage-side surface 822 being concave in a paraxial region thereof. Thesecond lens element 820 is made of plastic material and has theobject-side surface 821 and the image-side surface 822 being bothaspheric.

The third lens element 830 with negative refractive power has anobject-side surface 831 being convex in a paraxial region thereof and animage-side surface 832 being concave in a paraxial region thereof. Thethird lens element 830 is made of plastic material and has theobject-side surface 831 and the image-side surface 832 being bothaspheric.

The fourth lens element 840 with positive refractive power has anobject-side surface 841 being concave in a paraxial region thereof andan image-side surface 842 being convex in a paraxial region thereof. Thefourth lens element 840 is made of plastic material and has theobject-side surface 841 and the image-side surface 842 being bothaspheric. A center of the image-side surface 842 of the fourth lenselement 840 is a point closest to the image surface 890 on theimage-side surface 842.

The fifth lens element 850 with negative refractive power has anobject-side surface 851 being concave in a paraxial region thereof andan image-side surface 852 being convex in a paraxial region thereof. Thefifth lens element 850 is made of plastic material and has theobject-side surface 851 and the image-side surface 852 being bothaspheric.

The sixth lens element 860 with positive refractive power has anobject-side surface 861 being convex in a paraxial region thereof and animage-side surface 862 being concave in a paraxial region thereof. Thesixth lens element 860 is made of plastic material and has theobject-side surface 861 and the image-side surface 862 being bothaspheric. The image-side surface 862 of the sixth lens element 860 hasat least one convex shape in an off-axis region thereof.

The seventh lens element 870 with positive refractive power has anobject-side surface 871 being convex in a paraxial region thereof and animage-side surface 872 being concave in a paraxial region thereof. Theseventh lens element 870 is made of plastic material and has theobject-side surface 871 and the image-side surface 872 being bothaspheric. The image-side surface 872 of the seventh lens element 870 hasat least one convex shape in an off-axis region thereof.

The IR-cut filter 880 is made of glass and located between the seventhlens element 870 and the image surface 890, and will not affect thefocal length of the photographing optical lens assembly. The imagesensor 895 is disposed on or near the image surface 890 of thephotographing optical lens assembly.

The detailed optical data of the 8th embodiment are shown in Table 15and the aspheric surface data are shown in Table 16 below.

TABLE 15 8th Embodiment f = 3.71 mm, Fno = 2.32, HFOV = 43.7 deg.Curvature Focal Surface # Radius Thickness Material Index Abbe # Length0 Object Plano Infinity Lens 1 3.316 (ASP) 0.305 Plastic 1.544 55.9356.04 3.265 (ASP) 0.083 1 Ape. Stop Plano −0.002 2 Lens 2 2.287 (ASP)0.415 Plastic 1.544 55.9 4.21 3 1010.131 (ASP) 0.050 4 Lens 3 8.359(ASP) 0.240 Plastic 1.639 23.5 −10.16 5 3.614 (ASP) 0.381 6 Lens 4−191.253 (ASP) 0.677 Plastic 1.544 55.9 7.55 7 −4.026 (ASP) 0.237 8 Lens5 −1.585 (ASP) 0.300 Plastic 1.639 23.5 −5.21 9 −3.249 (ASP) 0.035 10Lens 6 1.994 (ASP) 0.576 Plastic 1.544 55.9 6.63 4.003 (ASP) 0.353 Lens7 1.111 (ASP) 0.585 Plastic 1.535 55.7 74.64 11 0.933 (ASP) 0.700 12IR-cut filter Plano 0.210 Glass 1.517 64.2 — 13 Plano 0.355 14 ImagePlano — Note: Reference wavelength (d-line) is 587.6 nm.

TABLE 16 Aspheric Coefficients Surface # 1 2 4 5 6 k = −4.5993E+00−3.5368E+01 −1.3146E+01 −9.0000E+01   3.5836E+01 A4 = −2.1717E−02−1.0442E−01 −1.1771E−01 −7.2834E−02 −1.9220E−02 A6 =   5.0195E−02  1.1736E−01   8.4213E−02 −9.6357E−02 −1.2768E−02 A8 = −3.9178E−02  1.0130E−02 −1.2326E−01   1.1864E−01   1.4077E−02 A10 =   1.8990E−02−1.4450E−01   3.0101E−02 −8.4602E−02 −3.7159E−02 A12 =   1.3048E−02  2.2108E−01   2.0957E−01   2.1261E−02   1.7553E−02 A14 = −5.8158E−03−9.3674E−02 −2.1026E−01 −3.2557E−02 −1.2925E−02 Surface # 7 8 9 10 11 k= −3.8872E+00 −9.0000E+01   6.9824E+00   1.2645E−01 −5.1870E−01 A4 =  2.6425E−03 −6.5187E−02 −6.6191E−02 −1.5941E−02 −1.8582E−01 A6 =−6.2129E−03 −1.6657E−02 −2.0395E−01 −9.1589E−02   2.0623E−01 A8 =−9.9116E−03 −1.8606E−02   4.0852E−01   3.9890E−01 −8.1693E−02 A10 =−5.1902E−03 −5.8668E−03 −3.8929E−01 −3.4339E−01   1.7728E−02 A12 =  7.4777E−06   1.3548E−02   2.3497E−01   1.2792E−01 −2.7354E−03 A14 = —— −8.9658E−02 −1.8336E−02   2.6765E−04 A16 = — —   1.6139E−02 — —Surface # 12 13 14 15 k = −8.3116E+00 −2.6560E+00 −2.4676E+00−2.2340E+00 A4 =   4.9275E−02   4.8488E−02 −1.7910E−01 −1.4165E−01 A6 =−3.3421E−02 −3.1868E−02   5.2217E−02   5.7886E−02 A8 =   8.2702E−03  7.3787E−03 −9.5043E−03 −1.6095E−02 A10 = −1.7706E−03 −1.0663E−03  1.3462E−03   2.7610E−03 A12 =   2.8374E−04   9.7553E−05 −1.3658E−04−2.7706E−04 A14 = −1.8751E−05 −3.9964E−06   8.1666E−06   1.4908E−05 A16= — — −2.0921E−07 −3.3183E−07

In the 8th embodiment, the equation of the aspheric surface profiles ofthe aforementioned lens elements is the same as the equation of the 1stembodiment. Also, the definitions of these parameters shown in thefollowing table are the same as those stated in the 1st embodiment withcorresponding values for the 8th embodiment, so an explanation in thisregard will not be provided again.

Moreover, these parameters can be calculated from Table 15 and Table 16as the following values and satisfy the following conditions:

8th Embodiment f [mm] 3.71 Dr1r6/CT4 1.61 Fno 2.32 f2/|f1| 0.01 HFOV[deg.] 43.7 R12/f 1.08 V2/V3 2.38 (|R13| + |R14|)/f 0.55 V3 + V5 47.0R14/f 0.25 CT2/CT1 1.36 TL/ImgH 1.51 CT4/CT5 2.26 |f/f1| + |f/f2| 0.89ΣCT/Td 0.73 |Powmax| 0.88

The foregoing image capturing unit is able to be installed in, but notlimited to, an electronic device, including smart phones, tabletpersonal computers and wearable apparatus. According to the presentdisclosure, the photographing optical lens assembly has a total of sevenlens elements, and the image-side surface of the seventh lens element isconcave in a paraxial region thereof. When specific conditions aresatisfied, the image-side surface of the seventh lens element isfavorable for effectively reducing the back focal length of thephotographing optical lens assembly so as to maintain a compact sizethereof. Moreover, it is favorable for the principal point of thephotographing optical lens assembly being positioned away from the imageside of the photographing optical lens assembly so as to reduce thetrack length of the photographing optical lens assembly. Furthermore,the refractive power distribution at the image side of the photographingoptical lens assembly is sufficient so that it is favorable forproviding wide field of view, low sensitivity and compact size.According to the disclosure, the photographing optical lens assemblysimultaneously satisfies the requirements of compact size and high imagequality.

The foregoing description, for the purpose of explanation, has beendescribed with reference to specific embodiments. It is to be noted thatTABLES 1-16 show different data of the different embodiments; however,the data of the different embodiments are obtained from experiments. Theembodiments were chosen and described in order to best explain theprinciples of the disclosure and its practical applications, to therebyenable others skilled in the art to best utilize the disclosure andvarious embodiments with various modifications as are suited to theparticular use contemplated. The embodiments depicted above and theappended drawings are exemplary and are not intended to be exhaustive orto limit the scope of the present disclosure to the precise formsdisclosed. Many modifications and variations are possible in view of theabove teachings.

What is claimed is:
 1. A photographing optical lens assembly comprising,in order from an object side to an image side: a first lens element; asecond lens element having positive refractive power; a third lenselement; a fourth lens element; a fifth lens element; a sixth lenselement with positive refractive power having both of an object-sidesurface and an image-side surface being aspheric; and a seventh lenselement having an image-side surface being concave in a paraxial regionthereof, wherein the image-side surface of the seventh lens element hasat least one convex shape in an off-axis region thereof, and both of anobject-side surface and the image-side surface of the seventh lenselement are aspheric; wherein the photographing optical lens assemblyhas a total of seven lens elements; the first lens element, the secondlens element, the third lens element, the fourth lens element, the fifthlens element, the sixth lens element and the seventh lens element areall single and non-cemented lens elements; wherein a curvature radius ofthe image-side surface of the sixth lens element is R12, a curvatureradius of the image-side surface of the seventh lens element is R14, afocal length of the photographing optical lens assembly is f, a focallength of the first lens element is f1, a focal length of the secondlens element is f2, an axial distance between an object-side surface ofthe first lens element and an image surface is TL, a maximum imageheight of the photographing optical lens assembly is ImgH, and thefollowing conditions are satisfied:0≦R12/f;f2/|f1|<1.5;R14/f<0.75; andTL/ImgH<3.0.
 2. The photographing optical lens assembly of claim 1,wherein the image-side surface of the sixth lens element is concave in aparaxial region thereof, and the image-side surface of the sixth lenselement has at least one convex shape in an off-axis region thereof. 3.The photographing optical lens assembly of claim 2, wherein a centralthickness of the fourth lens element is CT4, a central thickness of thefifth lens element is CT5, and the following condition is satisfied:1.25<CT4/CT5<4.0.
 4. The photographing optical lens assembly of claim 2,wherein a maximum refractive power among the first lens element, thesecond lens element, the third lens element, the fourth lens element,the fifth lens element, the sixth lens element and the seventh lenselement is Powmax, and the following condition is satisfied:|Powmax|<0.90.
 5. The photographing optical lens assembly of claim 1,wherein a sum of central thicknesses of the first lens element, thesecond lens element, the third lens element, the fourth lens element,the fifth lens element, the sixth lens element and the seventh lenselement is ΣCT, an axial distance between the object-side surface of thefirst lens element and the image-side surface of the seventh lenselement is Td, and the following condition is satisfied:0.70≦ΣCT/Td<0.95.
 6. The photographing optical lens assembly of claim 1,wherein the curvature radius of the image-side surface of the seventhlens element is R14, the focal length of the photographing optical lensassembly is f, and the following condition is satisfied:R14/f<0.60.
 7. The photographing optical lens assembly of claim 6,wherein the curvature radius of the image-side surface of the seventhlens element is R14, the focal length of the photographing optical lensassembly is f, and the following condition is satisfied:R14/f<0.45.
 8. The photographing optical lens assembly of claim 1,wherein a curvature radius of the object-side surface of the seventhlens element is R13, the curvature radius of the image-side surface ofthe seventh lens element is R14, the focal length of the photographingoptical lens assembly is f, and the following condition is satisfied:(|R13|+|R14|)/f<2.0.
 9. The photographing optical lens assembly of claim1, wherein a central thickness of the first lens element is CT1, acentral thickness of the second lens element is CT2, and the followingcondition is satisfied:CT2/CT1<1.60.
 10. The photographing optical lens assembly of claim 1,wherein a center of an image-side surface of the fourth lens element isa point closest to the image surface on the image-side surface of thefourth lens element.
 11. The photographing optical lens assembly ofclaim 1, wherein an axial distance between the object-side surface ofthe first lens element and an image-side surface of the third lenselement is Dr1r6, a central thickness of the fourth lens element is CT4,and the following condition is satisfied:Dr1r6/CT4<2.50.
 12. The photographing optical lens assembly of claim 1,wherein an Abbe number of the third lens element is V3, an Abbe numberof the fifth lens element is V5, and the following condition issatisfied:V3+V5<60.
 13. The photographing optical lens assembly of claim 1,wherein the focal length of the photographing optical lens assembly isf, the focal length of the first lens element is f1, the focal length ofthe second lens element is f2, and the following condition is satisfied:|f/f1|+|f/f2|<1.50.
 14. The photographing optical lens assembly of claim1, wherein an Abbe number of the second lens element is V2, an Abbenumber of the third lens element is V3, and the following condition issatisfied:1.5<V2/V3<3.5.
 15. The photographing optical lens assembly of claim 14,wherein the third lens element has negative refractive power, the fourthlens element has positive refractive power.
 16. The photographingoptical lens assembly of claim 14, wherein the fourth lens element hasan image-side surface being convex in a paraxial region thereof.
 17. Thephotographing optical lens assembly of claim 1, wherein the object-sidesurface of the seventh lens element is convex in a paraxial regionthereof.
 18. The photographing optical lens assembly of claim 1, whereinthe focal length of the first lens element is f1, the focal length ofthe second lens element is f2, and the following condition is satisfied:f2/|f1|<1.0.
 19. An image capturing unit, comprising: the photographingoptical lens assembly of claim 1; and an image sensor, wherein the imagesensor is disposed on the image side of the photographing optical lensassembly.
 20. An electronic device, comprising: the image capturing unitof claim 19.